Method of coating and finishing flooring



E. C. DITTMAR.

METHOD OF COATING AND FINISHING FLOORING.

APPLICATION HLED NOV. 20. 1918. 1,43%888.

Patented Oct. 3, 1922 6 SHEETSSHEET I.

E. C. DITTMAR.

METHOD OF COATING AND FINISHING FLOORING.

APPLICATION FILED NOV. 20, 1918.

1 ,430 ,888 I Patented Oct. 3, 1922..

6 SHEETSSHEET 2.

E C. DITTMAR.

METHOD OF COATING AND FINISHlNG FLOORING.

APPLICATIONJILED NOV, 20, ms.

Msmw

Patented Oct 3, 1922..

6 SHEETS-SHEET 3.

a. c. DITTIVIAR.

METHOD OF COATING AND FINISHING FLOORING.

APPLICATION FILED NOV, 20, I918.

"msmssso 6 SHEETS-SHE Patented Oct. 3, 2.

E. C. DITTMAR.

METHOD OF COATING AND FINISHING FLOORING.

APPLICATION FILED NOV, 20, I9I8.

Patented Oct 3, 1922.

6 SHEETS-SHEET 5.

avme wto'c E. C. DITTMAR.

METHOD OF COATING AND FlNlSHING FLOORING.

APPLICATION FILED Nov 20. 1918.

' 1,430,8 8, Patented 0%.3 1922.

6 SHEETSSHEET 6 5114mm wtoz atented @ct. l

nnnnn o. mean, or a a:

IAMSFEEMH. IPENMQYIMZ non @F GUATING AND QEINGY FLWURHFG.

tlrlginal application filed. August $8, 1918,, Serial No. $51,740. Patent No. 1,339,1tl7. Divided and this application tiled November to, 19m.

To all whom it may concern:

Be it @own that l, Era/inn C. .Drrriran, a citizen of the United States, residing at Williamsport, in the county of Lycoming and State of Pennsylvania, have invented certain new and useful Improvements in Methods of Coating and Finishing Flooring, of which the following is a specification, reference being had therein to the accompanying drawing.

lhis invention relates to a method of coating and finishing flooring and is a companion application of my application filed November 20, 1918, Serial 263,358 and com- Kill prises a division ct my application filed August 28, 1918, Serial No. 251,740, the object being to provide a machine by means or which the flooring filled and varnished in the companion case can be given a coating of oil and additional coating of varnish so as to complete the shing of the flooring strip.

Another object tr the invention is to pro-- vide novel method of applying a coating of oil to the under t or the flooring strip as it passes through the machine so that the entire surface of the strip will be coatedin order to preserve the strip when in use.

Another and turther object of the invention is to provide a method for smoothing thesurtace thus treated so that the last coat of varnish can be applied without brush marks, whereby ll am able to obtain a highfinish without thereto.

Other and further objects and advantages of the invention will he hereinafter set forth applying a smoothing powder and'the novel features thereot defined in the Figure 7 iso top plan view of the some. lo 7 other styles can be used in orcr to eceomp the some nrmllte.

Figure 8' is a ve ical sari/ion through the oil tray.

partly section Serial lilo. $63,359.

Figure 9 is a detail perspective view oi the lower end of the oil feed pipe.

Figure 10 is a vertical section through the pressure roll bearing, partly in elevation.

Figure 11 is an elevation, partly in section,

of one of the pressure rolls Figure 12 is a perspective view showing the manner of mountin the burnishers, and

way 2, in which is mounted one of the run-'.

ways of an endless conveyor 8, carried loy sprockets t mounted in adjustable m; 5, as clearly shown in Figure 1. Une of the ill sprockets is mounted on a shaft 6, journaled in suitable hearings in the frame 1, md havi a tight and loose pulley 7 and 8 mounted thereon which are adapted to be driven by a driveybelt 9 from any suitable source of power, not shown.

The endless conveyor 3 is driven by a shaiit n so as to move in the guide-way which is formed of such a width that it receives snugly a strip of flooring 1 O to beoperated on. he conveyor is provided with spurs which are adapted to engage the under side oi thestrip 10, the strip adapted to be forced against the conveyor by pressure rollor 11, carried by a shaft 12 mounted in an adjustable bearing 13 which 15 caged by an arm 14: carrying a weight 15 inprder to apply the proper pressure to the str1p.

Mounted about the conveyor in advance of the pressure roller 11 are a serles oi burnishers re preferably termed o1E glass mounted in blocks 17 carried by flemble holders 18 which are pivotally connected to supports 19 and are provided with screws 2Q for adpusting the pressure. The contacting surtaces of the'burnishers are so constructed that they do not scrape the surface but bnrnish the previously varnished strip. 1le n this a paratus it have shown this constructmn or holder for thehurnishers, the construction shown in my companion application can be used, and l do not wish to limit myself use ct enyparticular l have found in ractice that motion of Arranged in the same horizontal plane as the conveyor at the opposite end of the frame are supports 21 having adjustable guide rollers 22 between which the strip of material being 0 erated on is adapted to pass, and these r0 lers are preferably grooved so as to support the strip in such a manner that the upper and lower surfaces of the strip can be readily coated, as will be later described.

Mounted on a suitable bracket extending from the frame 1, is an oil tray 23 in which is adjustably mounted the perforated block 24 having its upper surface covered with cloth 25 which is adapted to apply the coat of oil to the under surface of the strip as it passes over the same. The tray 23 is formed with open ends which are bent to form guideways 26 so as to guide the strip of flooring as it passes through the same.

In order to remove the surplus of oil I provide the block 24 with leather strips 27 which engage the under surface of the strip of flooring after it has been coated with oil so as to force the oil into the pores and to re- ,move the same therefrom.

- The oil tray 23 is supplied with oil from a tank 28 by a pipe 29, which is provided with a slot 30 said pipe extending down into the tray in such a manner'that the oil will be mamtaine'd at a predetermined level therein and prevented from overflowing by atmospheric pressure.

Pivotally mounted on the frame 1, is a varnish tray 31 which is provided with a reduced lower portion 32 having an apertured bottom over which is arranged a strip of felt 33 which is adapted tobe held in contact with the upper surface of the strip of by pressure through the medium of a We t 34 so as to a ply the last coat of varnls to the strip; he varnish tra 31 is supplied with varnish from the varnis tank 35 through a pipe 36 which extends into the reduced portion of the tray, and is provided. w1th an opening 37 in order to maintain the varnish in the tank at a'predetermined level. TlllS prevents the varnish from hardening as flooringl only a small amount of varnish is maintained in the tray. v

/ After the strip of flooring has been given a coat of varnish it passes under a pair of brushes 38 carried by a brush holder 39, pivoted to the frame 1 so as to apply the varnish evenly to the surface as the strip passes through the machine.

In order to hold thestrip firmly against. the cloth in the oil tank I arrange a pair of pressure rollers 40 to, each side of the oil tray, said rollers being held under tension bycolled springs 41, as shown in Figure 11. As a strip of material which has been previously varnished and allowed .to dryis fed onto the endless conveyor it first passes under the burnishers where all rou h portions are removed, and as it passes un er the pressure roller 11 is forced into engagement with the ,thereb eliminating any waste.

In t e drawings I have shown details of construction but I do not wish to limit myself to these various details of construction,

as the main object of my invention is to provide an apparatus for carrying out the meth- 0d of coating the under surface of a strip of lumber with a preservative and the upper to surface with varnish in such a manner that the strip and then applying to the surface thereof a coatin of varnlsh.

2; The metho of finishing strips of previously coated lumber consisting in continuously moving the strip of lumber and while in motion applying a coat of varnish to the surface of the strip and then by the movement of the strip subjecting the coating of varnish thusapplied to a brushing action to form a smooth surface.

3. The method of finishing strips of previously varnished flooring consisting in burnishing the surface of the strip to remove the roughened portions therefrom, applying a coatingof varnish to the upper surface of the strip under pressure and then brushing the varnish to form a smooth surface.

4. The method of finishing a previously varnished strip'of flooring consisting in.1m-'

parting movement to the strip, burnishing the upper surface of the strip, applying a' coating of varnish to the upper surface, and brushing the varnish to produce a smooth surface.

5. The method of finishing a previouslying a coating of varnish to the upper surface of the strip, andspreading the varnish thus] applied to form a smooth surface.

7 The method of finishing strips of previously-coated lumber consisting in moving the strip in a normal path, burnishing the strip, applying additional coating to the strip, and then brushing said coating to form a smooth surface. s

8. The method of finishing strips of previousiy coated 'lumher consisting in continu- 1-1 once composition to the unvarnished surface of the strip.

viously varnished flooring consisting in burnishing the surface of the strip While in motion, applying a coating of varnish to the surface of the strip While in motion, and then spreading the varnish thus applied to to a smooth surface.

In testony whereof I have hereunto aed my signature in presence of two witnesses.

- ER C; DITTMAR. Witnesses:

{ E "i M 10. The method of finishing. strips of pre- 

